Kimberley was assigned male at birth but started living as a woman at age $29.$ Following her sex$-$reassignment surgery, Kimberley experienced physical and emotional abuse in a relationship, and she was referred to an organization that assists battered women. Several years later, she responded to an advertisement for volunteers at a rape crisis centre. Being a woman was stipulated as a job qualification. During the training session, someone identified her as transgender, based solely on her appearance, and Kimberley was asked to leave. Kimberley filed a complaint with the BC Human Rights Tribunal. a$.$ What is the alleged ground of discrimination? b$.$ In your opinion, did the employer contravene the BC Code? Explain your answer